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Bare Metal footprint calculation

At Scaleway the Bare Metal category includes different types of servers, such as:

  • Apple silicon servers
  • Elastic Metal servers, and
  • Dedibox servers.

This page includes the specificities of the environmental footprint calculation for Apple silicon and Elastic Metal servers.

Important

The calculations also take into consideration all the elements described in the Environmental Footprint calculation breakdown documentation page. Refer to said page for a full breakdown of the Environmental Footprint calculation performed at Scaleway.

For bare metal servers, the allocation of environmental impact is straightforward due to the direct association between a user and a server. The environmental impact of a bare metal server is entirely attributed to the user who operates it. This encompasses the energy consumption during its operation, as well as a portion of the impact from the server's manufacturing process.

The manufacturing impact is prorated based on the server's lifespan and the duration of its use by the customer. By dividing the total manufacturing impact by the expected lifetime of the server and then allocating it according to the specific usage period, we ensure that each user is accountable for their fair share of the server's overall environmental footprint.

Important

Currently, our calculations for Elastic Metal GPU servers do not include the environmental impact of GPU manufacturing due to insufficient data from the manufacturer. While the impact of CPUs, RAM, disk, and energy consumption is accounted for, the absence of GPU manufacturing data means the figures provided today are underestimated.

We will update our methodology as soon as more reliable data on GPU manufacturing becomes available.

Calculation example

For the use of an Elastic Metal server, with a lifespan of 6 years (52 560 hours) and power of 110w, for 100 hours and considering via Boavizta estimates that the impact of the manufacturing of this server is 850 kgCo2e, we make the following calculation:

ServerManufacturing = (100 / 52560) * 850 = 1,62 kgCO2e

Therefore 1,62 kgCO2e is added to the total manufacturing impact of this server.

To calculate the usage, we consider the French energy mix and the datacenter's PUE. In this example, they are O,056kgCo2e/kwh and 1,16, respectively. Which results in:

UsageFootprint = 0,110 * 100 * 0,056 * 1,16 = 0,715 kgCo2e
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